No flames for suggesting the Ekornes is worth the wait Tedb, I KNOW they are (a friend of the family that my wife and I used to house sit for had pair by their kitchen fireplace, and believe me I spent long hours in that chair, it is awesome. I am lucky enough that there is a dealer right here in my town too...) it is just a matter of continuing to wait!
I had not thought of the used car seat DIY'd into a listening chair. It certain does fit my style, my unfinished basement requires next to no WAF, and if I could find the right funky car seat on the cheap, I would be willing to invest the time to cobble togeher some kind of support system to get it right in the room. A can of flat black paint to neutralize the whole substructure, and I would be done.
Corvette leather? Cloth seats would likely cost less, but leather would be more fun. I am sure the passenger seat of any sports car would likely be in better condition too, and less attractive to racers etc.
I will consider having a look around the local 'yards, but with the weather currently hovering around -5C, it may have to wait.
I currently use an IKEA Poang chair, cloth covered. ALWAYS regret not buying a leather one, with darker wood, but at the time of purchase the lighter one with cloth matched what we had, and it was in a room with other items that did require WAF.
I don't nap at all, let alone in my listening chair, but I can see why it might be a req for others. I tend to listen sitting upright (use of the word erect there just seemed so wrong!

) and the other use for the chair (perhaps 10%) is when folks come over to play pool, and there are more than just 2, there is a couch and a small sitting area. The whole space is raw basement, so it is used by me to listen and play pool (combined often) and also my little girls (now 3 and 5) love to horse around down there.
Thanks for all the ideas, and for sharing your personal perspective, I will continue to mull it over, and will absolutely share what i come up with!